[ealgeone]

Why can’t Christians accept the obvious: homosexuality is part of God’s plan. If it isn’t, why does it exist?>

by this stretch of logic any activity can be considered part of "God's plan".

However, sin, which, homosexuality is, is not part of God's plan. Why? Because sin is not part of His plan.

[Maelstorm]

Adultery exists? Murderous anger exists. Only someone who is clueless about God would make such a lame argument.